my $show_module_name = 1;
my $use_indent = 1;
my $strip_leading_underscore = 0;

# Dump all symbols for the given object file that are defined and have
# external scope.

sub dump_symbols_for_file($)
{
    $fn = shift;

    print STDERR "Opening dump of object [$fn]\n";

    open(SP, '-|', "dumpbin /symbols \"".$fn."\"") or die "Can't open pipe for $fn";

  LINE:
    while (<SP>) {
	# 008 00000000 SECT3  notype ()    External     | _encode_AccessDescription

	/^[[:xdigit:]]{3,}\s[[:xdigit:]]{8,}\s(\w+)\s+\w*\s+(?:\(\)|  )\s+(\w+)\s+\|\s+(\w+)$/ && do {
	    my ($section, $visibility, $symbol) = ($1, $2, $3);

	    if ($section ne "UNDEF" && $visibility eq "External") {
		print $fn if $show_module_name;
		print "\t" if $use_indent || $show_module_name;

		if ($strip_leading_underscore && $symbol =~ /_(.*)/) {
		    $symbol = $1;
		}
		print $symbol;
		print "\n";
	    }
	};
    }

    close SP;
}

sub use_response_file($)
{
    $fn = shift;

    open (RF, '<', $fn) or die "Can't open response file $fn";

    while (<RF>) {
	/(\S+)/ && do {
	    dump_symbols_for_file($1);
	}
    }
    close RF;
}

for (@ARGV) {
    ARG: {
	/-q/ && do {
	    $show_module_name = 0;
	    last ARG;
	};

	/-1/ && do {
	    $use_indent = 0;
	    last ARG;
	};

	/-u/ && do {
	    $strip_leading_underscore = 1;
	    last ARG;
	};

	/@(.*)/ && do {
	    use_response_file($1);
	    last ARG;
	};

	dump_symbols_for_file($_);
    }
}